Urban geographic data acquisition handheld equipment

Abstract

The invention discloses an urban geographic data acquisition handheld device. The device comprises a handheld mother machine device, a building measurement sub-machine device, a road measurement sub-machine device and an altitude sub-machine device. A liquid crystal touch display screen is fixedly connected to the middle of the front end face of the handheld mother machine device. A PLC circuit board is fixedly connected to the middle of an inner cavity of the handheld mother machine device. A microprocessor is fixedly connected to the PLC circuit board; the building measurement sub-machine device is an L-shaped shell. The lower end of the building measurement sub-machine device is fixedly connected with a clamping groove piece. A clamping table is movably clamped in the clamping groove piece; the lower end of the clamping table is rotationally connected with a supporting rod through a first rotating shaft. And the tail end of the supporting rod is rotationally connected with a supporting foot plate through a second rotating shaft, the road measurement sub-machine device shell is in a triangular cone shape, the right portion of an inner cavity of the altitude sub-machine device isfixedly connected with a GPRS altitude meter and a mechanical altitude meter, and the road measurement sub-machine device is rich in function and practical and has certain popularization value.

Description

technical field [0001] The invention relates to the technical field of geographic information equipment, in particular to a handheld device for collecting urban geographic data. Background technique [0002] There are many types of geographic data in cities, which can be generally divided into three categories: surface, line, and point data. For example, the bottom of a building, the land area of ​​a school, and the land area of ​​a factory are all area data, and roads are generally line data. Smaller features or various locations are point data. The difference between geographic data and ordinary data is that each data has a latitude and longitude coordinate value. Therefore, this device should be able to input geographic coordinates (east longitude, north latitude, altitude) or Relative coordinates (X (horizontal coordinate), Y (vertical coordinate), Z (height)), three-dimensional geographical data, all three coordinates are required, plane data only need two coordinate va...

AI Technical Summary

Problems solved by technology

The purpose of collecting urban geographic data is to collect the above-mentioned coordinates and attribute information into the system, and provide data basis and reference for map drawing, geographic analysis, spatial location decision-making, urban research, etc. The existing equipment information input steps are complex and difficult, not It is beneficial to practical use. For this reason, we propose a handheld device for urban geographic data collection. Existing geographic data collection devices generally use multiple extension devices or various types of sub-monitoring devices to achieve three-dimensional data collection of geographic data. For example, the current There is a related solution recorded in the patent technology CN206095227U, but in the above solution, the data monitoring between each extension device or sub-device is independent, and each monitoring sub-device needs to be calibrated one by one before entering the measurement area, so that the entire measurement takes longer

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